(19)

(11)

EP 0 766 769 A1

(12)

(43) Date of publication: 09.04.1997 Bulletin 1997/15 (21) Application number: 95923122.0 (22) Date of filing: 23.06.1995

(51) International Patent Classification (IPC):  E04G 1/ 15( . ) E04G 5/ 04( . ) E04G 1/ 20( . ) E04G 21/ 32( . ) (86) International application number: PCT/AU1995/000374 (87) International publication number: WO 1996/000336 (04.01.1996 Gazette 1996/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 23.06.1994 AU 1994PM06442 (71) Applicant: Kookoala Pty Ltd Toowoomba QLD 4350 (AU)	(72) Inventor: REYLAND, Shane, Trevor Toowoomba, QLD4350 (AU) (74) Representative: Jones, Graham H.  Graham Jones & Company 77 Beaconsfield Road Blackheath London SE3 7LG London SE3 7LG (GB)